body {
  padding: 0;
  margin: 0;
  margin-top: 100px;
  display: flex;
  justify-content: center;
  background-color: #fff;
}
.hw-swiper {
  width: 800px;
  height: 400px;
  background-color: #fff;
  text-align: center;
  position: relative;
  background-size: cover;
  background-repeat: no-repeat;
  transition: opacity 0.3s;
  overflow: hidden;
}
.hw-swiper .img-box{
  width: 100%;
  height: 100%;
  display: flex;
  position: relative; 
  transition: transform 0.5s ease-in-out; 
}
.hw-swiper img {
  width: 100%;
  height: 100%;
  flex-shrink: 0;
  object-fit: cover;
}

.hw-swiper .swiper-l {
  width: 60px;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.5;
  z-index: 10;
}
.hw-swiper .swiper-r {
  width: 60px;
  height: 100%;
  position: absolute;
  top: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.5;
}
.hw-swiper .swiper-l:hover {
  opacity: 1;
  cursor: pointer;
}
.hw-swiper .swiper-r:hover {
  opacity: 1;
  cursor: pointer;
}
.hw-swiper .swiper-b {
  width: 150px;
  height: 40px;
  position: absolute;
  bottom: 0;
  left: 50%;
  z-index: 10;
  transform: translate(-50%);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.hw-swiper .swiper-b .circle {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: grey;
  transition: width 0.1s, height 0.1s;
}

.hw-swiper .swiper-b .circle.active {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background-color: rgb(0, 122, 255);
}
.hw-swiper .swiper-b .circle:hover {
  background-color: rgb(0, 122, 255);
  cursor: pointer;
}
